Base assembly and cooking equipment
By employing an inclined heating plate and water control components in the steam stew pot, automatic water intake control is achieved, solving the problems of discontinuous steam and dry burning, improving ease of use and safety, and shortening cooking time.
Patent Information
- Application Number
- CN202423323650.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing steam stew pots require users to manually control the water intake and stop during the cooking process, which is inconvenient and may lead to problems such as intermittent steam, dry burning of the heating element, and noise, affecting the cooking effect and the life of the equipment.
A base assembly was designed, comprising an inclined heating plate and a water control component. The flow between the water supply end and the steam generator is automatically controlled by a temperature switch to ensure continuous steam generation, reduce the risk of dry burning, and improve ease of use and safety.
The automatic water filling function of the steam stew pot is realized, ensuring continuous steam generation, reducing the risk of dry burning of the heating element, improving the convenience and safety of water supply for cooking equipment, and shortening cooking time.
Smart Images

Figure CN223773539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooking equipment technology, and more specifically, to a base assembly and a cooking device. Background Technology
[0002] Steam cookers heat the stew pot and the food inside using steam. To ensure cooking speed, the temperature inside the cooking chamber needs to rise rapidly and remain stable throughout the cooking process, which requires a stable supply of water to the heating element and continuous steam generation.
[0003] During the cooking process, users need to manually control the water supply to and from the heating element, requiring them to stay by the steam cooker, which is inconvenient for users. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] In view of this, in a first aspect, the present invention proposes a base assembly for a cooking device, the cooking device having a cooking cavity, the base assembly comprising: a base; a steam generating assembly disposed within the base, the steam generating assembly comprising a heating plate and a steam generating element, the heating plate having a heating surface for heating water within the steam generating element to supply steam to the cooking cavity, the heating surface comprising an inclined surface, a first side of the inclined surface adjacent to the edge of the heating plate, with the horizontal plane as a reference, the height of the inclined surface decreasing from the first side to the second side of the inclined surface, the heating plate comprising a mounting portion; and a water control assembly disposed within the base, the water control assembly comprising a temperature switch disposed on the mounting portion, the temperature of the temperature switch changing with the temperature of the heating plate, the water control assembly connecting the water supply end to the steam generating element when the temperature of the temperature switch is greater than or equal to a first set temperature T1, and the water control assembly closing the passage between the water supply end and the steam generating element when the temperature of the temperature switch is less than a second set temperature T2, T1≥T2, the mounting portion being disposed opposite to the inclined surface in a direction perpendicular to the horizontal plane.
[0006] After water from the water supply end enters the steam generator, the heating plate raises the temperature and turns the water into steam. The cooking equipment has a cooking chamber, and the steam from the steam generator flows into the cooking chamber, thereby heating the food inside.
[0007] The water control component is located within the base. When the steam generator is operational, the heating plate heats up, and the temperature switch in the water control component adjusts accordingly; that is, as the heating plate temperature rises, the temperature switch temperature also rises. When the temperature switch reaches the first set temperature T1, the passage between the water supply and the steam generator is opened, allowing water from the supply end to enter the steam generator. In this state, the heating plate is at a high temperature, and the water entering the steam generator evaporates rapidly to form steam. During the evaporation process, the temperature of the heating plate gradually decreases, and the temperature switch temperature also decreases. When the temperature switch temperature falls below the second set temperature T2, the water control component closes the passage between the water supply and the steam generator, stopping water from entering the steam generator. In this state, the heating plate continues to heat up until the temperature switch temperature reaches the first set temperature T1 again. Then, the water control component reopens the passage between the water supply and the steam generator, repeating the above process.
[0008] In this way, the water control component can open or close the passage between the water supply and the steam generator based on the temperature of the temperature switch, thereby allowing the cooking equipment to control the water intake status within the steam generator through the temperature switch. This enables the cooking equipment to achieve automatic water intake, reducing the risk of the heating plate burning dry for extended periods, and improving the convenience and safety of water supply. During cooking, the user does not need to be present at the cooking equipment, providing greater convenience. Furthermore, the water control component ensures a precise amount of water enters the steam generator, and the heating plate heats this precise amount of water, increasing the speed at which the heating plate generates steam and helping to shorten cooking time.
[0009] To ensure the smooth operation of the water-boiling-refilling process, the temperature switch typically only raises to the first set temperature after the water in the heating element has boiled away. This is because the actual temperature of the temperature switch during the boiling stage must be lower than the first set temperature to prevent water from overflowing the steam generator due to insufficient boiling before water is added. For this reason, a certain amount of time is required between the water boiling away, the temperature switch reaching the first set temperature, and the water supply beginning to the steam generator. This can lead to several problems: during this time, no steam is generated, resulting in discontinuous steam production, which can affect the food. Cooking effect; During this period, the steam generator is also in a dry-burning state, with a high overall temperature, which affects its service life. If a coating is used, it will affect the reliability of the coating. During this period, the steam generator will rise to a high temperature. In the initial stage of water intake, obvious modal boiling will occur. The heat transfer between the steam generator and the water is slow. On the one hand, the violent boiling of the water at this time will generate noise, and hot water may splash out and cause injury. On the other hand, because the temperature of the steam generator cannot be reduced quickly, due to the influence of protective devices such as thermistors or thermostats, the steam generator cannot quickly resume operation, which further prolongs the steam interruption time.
[0010] The top surface of the heating plate is the heating surface, which is used to heat the water in the steam generator. At least a portion of the heating surface is an inclined surface. The first side of the inclined surface is adjacent to the edge of the heating plate, and the second side of the inclined surface is adjacent to the center of the heating plate. From the first side to the second side of the inclined surface, the height of the inclined surface decreases, that is, the inclined surface is inclined towards the center of the heating plate.
[0011] The heating plate is equipped with a mounting part, and the temperature switch is installed on the mounting part. The temperature switch is connected to the heating plate through the mounting part. The temperature of the position on the heating surface directly opposite the mounting part will affect the temperature of the temperature switch. In this solution, the mounting part is directly opposite the inclined surface.
[0012] An inclined surface is provided on the heating plate, which can form a water storage area at the top of the heating plate. As the water in the steam generator gradually evaporates, the liquid level in the steam generator gradually decreases. The water at the higher position on the heating surface evaporates first, and the water at the higher position on the inclined surface gradually boils dry. When there is still water at the lower position on the inclined surface, the heating surface in the dry-burning position begins to heat up, thereby driving the mounting part to heat up. The temperature switch is installed on the mounting part, so the temperature switch will also start to heat up. During this process, there is still water on the heating surface that is continuously heated.
[0013] With this solution, when water begins to enter the steam generator, a portion of the heating surface continues to heat the water and generate steam, which helps to achieve uninterrupted steam production throughout the entire operation and realizes the function of continuous steam generation. This greatly shortens the dry-burning time of the entire steam generator assembly, avoids the problem of steam intervals or shortens the steam interval time, and reduces the maximum temperature reached and the area of dry-burning of the steam generator assembly, thereby improving the reliability of the steam generator assembly.
[0014] Furthermore, by setting an inclined surface on the heating plate, when condensate drips onto the heating plate, the condensate will not stay above the mounting part, thus preventing the condensate from evaporating near the mounting part, thereby ensuring that the temperature switch can work normally and ensuring continuous steam generation.
[0015] In addition, the base assembly according to the above-described technical solution provided by this utility model may also have the following additional technical features:
[0016] In some technical solutions, optionally, the inclined surface extends from the highest point of the heating surface to the lowest point of the heating surface, and the mounting part is higher than the lowest point of the heating surface.
[0017] The heating surface is sloped, which forms a funnel-shaped structure that can hold water. Since the mounting part is higher than the lowest point of the heating surface, the temperature switch starts to heat up after some of the water on the heating surface has boiled away. However, there is still water in the lower part of the heating surface, which ensures continuous steam generation.
[0018] In some technical solutions, the heating surface may optionally include a bottom surface, which is connected to the inner side of the inclined surface, and the mounting part is higher than the bottom surface.
[0019] With the bottom surface located inside the inclined surface, the bottom surface and the inclined surface form a trough-shaped structure. The inclined surface serves as the sidewall of the trough-shaped structure, and the bottom surface serves as the bottom wall. Water can be stored inside the trough-shaped structure. The mounting part is higher than the bottom surface. After some of the water inside the trough-shaped structure boils away, the temperature switch starts to heat up. However, there is still water in the lower part of the trough-shaped structure, thus ensuring continuous steam generation.
[0020] In some technical solutions, the distance between the mounting part and the top of the inclined surface may be smaller than the distance between the mounting part and the bottom of the inclined surface.
[0021] With the mounting part closer to the top of the inclined surface, the temperature switch can respond quickly after some of the water on the inclined surface has boiled away, ensuring that the residual water on the heating surface can support the temperature switch even if it deforms. In some technical solutions, optionally, the heating plate has a groove located on the second side of the inclined surface.
[0022] A groove is provided on the top of the heating surface, and the groove is located on the second side of the inclined surface, that is, the groove is located on the inner side of the inclined surface. During the heating process of the water in the steam generator, as the water on the inclined surface is dried up, a certain amount of water is still stored in the groove, so that steam is continuously generated in the steam generator during the temperature switch heating process.
[0023] By setting a groove on the top of the heating surface, the groove has a certain water storage capacity. During the time period from when the temperature of the temperature switch reaches the first preset temperature to when water enters the steam generator, the water in the groove can prevent the problem of intermittent steam.
[0024] In some technical solutions, the groove may optionally include a groove sidewall and a groove bottomwall, with the included angle between the groove sidewall and the groove bottomwall being greater than 90°.
[0025] The sidewalls of the groove are inclined relative to the bottom wall of the groove, and the angle between the sidewalls and the bottom wall is greater than 90°. That is, the cross-sectional area of the groove gradually increases from the bottom wall to the opening of the groove, and the groove has an flared structure.
[0026] By setting the groove to a flared structure, the volume of the groove can be increased, thereby improving the water storage capacity of the groove. During the temperature switch heating process, the water in the groove is sufficient to support the steam generator to replenish water, thus avoiding the problem of steam interruption.
[0027] In some technical solutions, optionally, with the horizontal plane as a reference, the slope of the sidewall of the trench is greater than the slope of the inclined plane.
[0028] The slope of the groove sidewall is larger than that of the base, and the slope of the inclined surface is smaller than that of the horizontal plane. That is, the angle between the inclined surface and the horizontal plane is smaller, and the area covered by the inclined surface in the horizontal direction is larger. This allows the inclined surface to completely cover the mounting part, and the mounting part only contacts the inclined surface. This ensures that the influence of the mounting part is only affected by the inclined surface, which helps to improve the temperature response accuracy of the temperature switch.
[0029] In some technical solutions, the temperature switch is optionally staggered from the bottom wall of the tank in a direction perpendicular to the horizontal plane.
[0030] The temperature switch is offset from the bottom wall of the tank, so its temperature is affected by the inclined surface rather than the bottom wall. Even after the water on the inclined surface has boiled away, water remains in the groove. By positioning the temperature switch away from the groove, it can respond quickly when dry burning occurs on the inclined surface, thus rapidly reaching the first set temperature and shortening the dry burning time of the heating surface.
[0031] In some technical solutions, optionally, the heating plate is also provided with a mounting surface, which is located on the first side of the inclined surface, with the horizontal plane as a reference. The slope of the mounting surface is less than the slope of the inclined surface, and the steam generator is sealed to the mounting surface.
[0032] The heating plate is located at the bottom of the steam generator, and there is a sealed connection between the steam generator and the heating plate to prevent water from seeping out between the steam generator and the heating plate when there is water inside the steam generator.
[0033] In this design, the mounting surface is sealed to the steam generator. The mounting surface is located on the outer side of the inclined surface and is positioned at the edge of the heating plate. The slope of the mounting surface is less than that of the inclined surface; that is, the mounting surface can extend horizontally, or it can have a small angle with the horizontal direction. A smaller slope makes it easier to achieve a seal between the steam generator and the mounting surface, thus improving the sealing effect between the steam generator and the heating plate.
[0034] In some technical solutions, optionally, a steam outlet is provided on the top surface of the base, and the steam generator and the cooking cavity are connected through the steam outlet, with the top surface of the base inclined toward the steam outlet.
[0035] Steam from the steam generator flows into the cooking chamber through the steam outlet. The top surface of the base is tilted towards the steam outlet so that condensate on the top surface of the base can flow to the steam outlet, preventing condensate from accumulating on the top surface of the base.
[0036] In some technical solutions, the mounting part is optionally staggered from the steam outlet in a direction perpendicular to the horizontal plane.
[0037] Condensate drips onto the heating plate through the steam outlet. Because the mounting part and the steam outlet are staggered, the condensate will not drip onto the corresponding mounting part in the heating plate. This prevents the condensate from evaporating near the mounting part and affecting the temperature of the temperature switch, ensuring that the temperature switch can deform normally and thus ensuring that the water inlet function can be stably implemented.
[0038] In some technical solutions, the temperature switch can optionally be positioned below the heating plate, with the horizontal plane as the reference.
[0039] The temperature switch is positioned below the bottom of the heating plate, meaning the side of the temperature switch does not face the heating plate. This ensures that the temperature of the temperature switch is only affected by the mounting part, thus preventing other parts of the heating plate from affecting the temperature change of the temperature switch and improving the accuracy of the temperature response of the temperature switch.
[0040] In some technical solutions, the water control component may optionally include: a valve body housing connected to the heating plate, the valve body housing having a water inlet connected to the steam generator; and an elastic seal on the valve body housing, wherein a temperature switch is used to drive the elastic seal to move relative to the valve body housing. When the elastic seal is pushed by the temperature switch, the elastic seal opens the water inlet to connect the water inlet to the water supply end. When the elastic seal is in its initial position, the elastic seal closes the water inlet.
[0041] The temperature switch can push the elastic seal. When the elastic seal is pushed, it opens the water inlet, connecting the water supply end to the connecting pipe, allowing water to flow into the steam generator. When the temperature switch does not push the elastic seal, it closes the water inlet, preventing water from flowing into the steam generator.
[0042] When the temperature switch stops pushing the elastic seal, the elastic seal can automatically reset under the action of elastic force, realizing the function of automatically opening and closing the water inlet. Furthermore, the elastic seal is relatively soft, allowing it to fit tightly against the valve body shell, which helps improve the sealing effect at the water inlet.
[0043] The temperature switch directly actuates the elastic seal, eliminating the need for any intermediate components between them. This avoids issues caused by installation errors between intermediate components and the valve body housing, which could lead to the intermediate components failing to lift the elastic seal or the elastic seal failing to close the inlet after the temperature switch resets. By eliminating intermediate components, the stability of the interaction between the temperature switch and the elastic seal is ensured, guaranteeing the elastic seal's ability to reliably open and close the inlet.
[0044] In some technical solutions, the temperature switch optionally includes: a deformation part connected to the mounting part, which deforms when the temperature of the deformation part is greater than or equal to a first set temperature T1, and remains in its original state when the temperature of the deformation part is less than a second set temperature T2; and a pushing part connected to the deformation part, which pushes the elastic seal when the deformation part deforms.
[0045] The pushing part comes into contact with the deforming part, and the pushing part overlaps in the deforming part at a position where deformation can occur. The deforming part is used to push the pushing part, and when the deforming part deforms, the pushing part can follow the deformation of the deforming part to move.
[0046] Thus, with the deformable part and the elastic seal staggered, the linkage between the two can be achieved through the pushing part, which facilitates the rational layout of the internal structure of the cooking equipment.
[0047] Secondly, this utility model proposes a cooking device, including a base assembly as described in the first aspect.
[0048] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description
[0049] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0050] Figure 1 A schematic diagram of the structure of the cooking device in an embodiment of this utility model is shown;
[0051] Figure 2 A schematic diagram of the structure of the cooking device in an embodiment of this utility model is shown;
[0052] Figure 3 A schematic diagram of the steam generating assembly in an embodiment of this utility model is shown;
[0053] Figure 4 A schematic diagram of the structure of the heating plate, heating element, and water control assembly in an embodiment of this utility model is shown;
[0054] Figure 5 A schematic diagram of the heating plate and water control assembly in an embodiment of this utility model is shown;
[0055] Figure 6 A schematic diagram of the inclined surface in an embodiment of this utility model is shown;
[0056] Figure 7 A schematic diagram of the heating plate in an embodiment of this utility model is shown;
[0057] Figure 8 A schematic diagram of the base structure in an embodiment of this utility model is shown.
[0058] Figure label:
[0059] 100 Base assembly, 110 Base, 111 Steam outlet, 112 Top surface, 120 Steam generating assembly, 121 Heating plate, 122 Steam generator, 124 Heating element, 125 Heating surface, 126 Inclined surface, 127 Mounting part, 128 Groove, 1281 Groove side wall, 1282 Groove bottom wall, 129 Mounting surface, 130 Water control assembly, 131 Temperature switch, 1311 Deformable part, 1312 Pushing part, 132 Connecting pipe, 133 Valve body housing, 1331 Valve body upper cover, 1332 Valve body lower cover, 134 Water inlet, 135 Elastic seal, 136 Movable part, 137 Elastic part, 138 Spring, 139 Mounting port, 140 Bottom surface, 150 Horizontal surface, 200 Cooking equipment, 210 Cooking cavity, 300 Water supply end, 400 Cover. Detailed Implementation
[0060] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0061] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0062] The following reference Figures 1 to 8 This invention describes a base assembly and cooking device provided according to some embodiments of the present invention.
[0063] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments of this utility model, a base assembly 100 is provided for a cooking device 200, the cooking device 200 having a cooking cavity 210. The base assembly 100 includes: a base 110, a steam generating assembly 120, and a water control assembly 130. The steam generating assembly 120 is disposed within the base 110, and includes a heating plate 121 and a steam generating element 122. The heating plate 121 has a heating surface 125, which is used to heat the water in the steam generating element 122 to provide steam to the cooking cavity 210. The heating surface 125 includes an inclined surface 126, with a first side of the inclined surface 126 adjacent to the edge of the heating plate 121. With a horizontal plane 150 as a reference, the height of the inclined surface 126 decreases from the first side to the second side. A water control assembly 130 is disposed within the base 110. The water control assembly 130 includes a temperature switch 131. The heating plate 121 includes a mounting portion 127, and the temperature switch 131 is mounted on the mounting portion 127. The temperature of the temperature switch 131 changes with the temperature of the heating plate 121. When the temperature of the temperature switch 131 is greater than or equal to a first set temperature T1, the water control assembly 130 connects the water supply end 300 to the steam generator 122. When the temperature of the temperature switch 131 is less than a second set temperature T2, the water control assembly 130 closes the passage between the water supply end 300 and the steam generator 122. T1 ≥ T2, in the direction perpendicular to the horizontal plane 150 (…). Figure 2 (The arrow at point H points upwards) The mounting part 127 is positioned opposite the inclined surface 126.
[0064] After the water from the water supply end 300 enters the steam generator 122, the heating plate 121 can heat the water and turn it into steam by raising the temperature. The cooking device 200 has a cooking chamber 210, and the steam in the steam generator 122 flows into the cooking chamber 210, thereby heating and cooking the food inside.
[0065] The water control component 130 is housed within the base 110. When the steam generating component 120 is operational, the heating plate 121 heats up. The temperature of the temperature switch 131 within the water control component 130 changes with the temperature of the heating plate 121; that is, as the temperature of the heating plate 121 increases, the temperature of the temperature switch 131 also increases. When the temperature of the temperature switch 131 reaches the first set temperature T1, the passage between the water supply end 300 and the steam generating component 122 is opened, allowing water from the water supply end 300 to enter the steam generating component 122. In this state, the heating plate 121 is at a high temperature, and the water entering the steam generating component 122 is rapidly heated and evaporates to form steam. During the evaporation process, the temperature of the heating plate 121 gradually decreases, and the temperature of the temperature switch 131 also decreases. When the temperature of the temperature switch 131 is lower than the second set temperature T2, the water control component 130 closes the passage between the water supply end 300 and the steam generator 122, and the water from the water supply end 300 stops entering the steam generator 122. Under these circumstances, the heating plate 121 can continue to heat up until the temperature of the temperature switch 131 reaches the first set temperature T1 again. Then, the water control component 130 reopens the passage between the water supply end 300 and the steam generator 122, and repeats the above process.
[0066] Thus, the water control component 130 can open or close the passage between the water supply end 300 and the steam generator 122 according to the temperature of the temperature switch 131, thereby enabling the cooking equipment 200 to control the water intake state in the steam generator 122 through the temperature of the temperature switch 131. This enables the cooking equipment 200 to achieve automatic water intake, reducing the risk of prolonged dry burning of the heating plate 121, improving the convenience and safety of water supply to the cooking equipment 200, and eliminating the need for the user to be present during cooking, thus providing convenience for the user. Furthermore, the water control component 130 ensures that a fixed amount of water enters the steam generator 122, and the heating plate 121 heats this fixed amount of water, increasing the speed at which the heating plate 121 generates steam, which helps to shorten the cooking time.
[0067] To ensure the smooth operation of the water-boiling-refilling process, the temperature switch 131 typically only reaches the first set temperature after the water in the heating element has boiled away. This is because the actual temperature of the temperature switch 131 during the boiling stage must be lower than the first set temperature to prevent water from overflowing from the steam generator 122 due to insufficient boiling of the previous water. For this reason, a certain amount of time is required between the water boiling away, the temperature switch 131 reaching the first set temperature, and the water supply end 300 adding water to the steam generator 122. This leads to several problems: 1. No steam is generated during this time, i.e., the steam is discontinuous, which affects the food. Cooking effect; 2. During this period, the steam generating component 120 is also in a dry-burning state, with a high overall temperature, which affects its service life. If a coating is used, it will affect the reliability of the coating; 3. During this period, the steam generating component 120 will rise to a high temperature. In the initial stage of water intake, obvious modal boiling will occur. The heat transfer between the steam generating component 120 and water is slow. On the one hand, the violent boiling of water at this time will generate noise, and hot water may splash out and cause injury. On the other hand, because the temperature of the steam generating component 120 cannot be reduced quickly, due to the influence of protective devices such as thermistors or thermostats, the steam generating component 120 cannot quickly resume work, which further prolongs the steam interruption time.
[0068] The top surface of the heating plate 121 is a heating surface 125, which is used to heat the water in the steam generator 122. At least a portion of the heating surface 125 is an inclined surface 126. The first side of the inclined surface 126 is adjacent to the edge of the heating plate 121, and the second side of the inclined surface 126 is adjacent to the center of the heating plate 121. From the first side to the second side of the inclined surface 126, the height of the inclined surface 126 decreases, that is, the inclined surface 126 is inclined towards the center of the heating plate 121.
[0069] A mounting part 127 is provided on the heating plate 121, and a temperature switch 131 is mounted on the mounting part 127. The temperature switch 131 is connected to the heating plate 121 through the mounting part 127. The temperature of the heating surface 125 directly opposite the mounting part 127 will affect the temperature of the temperature switch 131. In this solution, the mounting part 127 is directly opposite the inclined surface 126.
[0070] An inclined surface 126 is provided on the heating plate 121, thereby forming a water storage area at the top of the heating plate 121. As the water in the steam generator 122 gradually evaporates, the liquid level in the steam generator 122 gradually decreases. The water at the higher position on the heating surface 125 evaporates first, and the water at the higher position on the inclined surface 126 gradually boils dry. When there is still water at the lower position on the inclined surface 126, the heating surface 125 in the dry-burning position begins to heat up, thereby driving the mounting part 127 to heat up. The temperature switch 131 is installed on the mounting part 127, so the temperature switch 131 will also start to heat up. During this process, there is still water on the heating surface 125 that is continuously heated.
[0071] With this solution, when water begins to enter the steam generator 122, a portion of the heating surface 125 continues to heat the water and generate steam, which helps to achieve the goal of uninterrupted steam throughout the entire working process and also realizes the function of continuous steam generation. This greatly shortens the dry burning time of the entire steam generator assembly 120, avoids the problem of steam intervals or shortens the steam interval time, and reduces the maximum temperature reached and the area of dry burning of the steam generator assembly 120, thereby improving the reliability of the steam generator assembly 120.
[0072] Furthermore, an inclined surface 126 is provided on the heating plate 121 so that when condensate drips onto the heating plate 121, the condensate will not stay above the mounting part 127, thus preventing the condensate from evaporating near the mounting part 127, thereby ensuring that the temperature switch 131 can work normally and ensuring continuous steam generation.
[0073] In one possible application, the steam generating assembly 120 further includes a heating element 124 connected to the heating plate 121 for heating the heating plate 121. Exemplarily, the heating element 124 may be a heating tube or a heating wire.
[0074] In one possible application, the first set temperature T1 is greater than 100°C. For example, the first set temperature T1 is 110°C or 120°C.
[0075] Combination Figure 4 and Figure 6 As shown, in some embodiments, optionally, the inclined surface 126 extends from the highest point of the heating surface 125 to the lowest point of the heating surface 125, and the mounting portion 127 is higher than the lowest point of the heating surface 125.
[0076] The heating surface 125 is sloped, which forms a funnel-shaped structure on the heating surface 125. Water can be stored in the funnel-shaped structure. Since the mounting part 127 is higher than the lowest point of the heating surface 125, when a part of the water on the heating surface 125 is boiled dry, the temperature switch 131 starts to heat up. However, there is still water in the lower part of the heating surface 125, which ensures that steam is continuously generated.
[0077] Combination Figure 4 and Figure 7 As shown, in some embodiments, the heating surface 125 may optionally include a bottom surface 140, which is connected to the inner side of the inclined surface 126, and the mounting portion 127 is higher than the bottom surface 140.
[0078] With the bottom surface 140 located inside the inclined surface 126, the bottom surface 140 and the inclined surface 126 form a trough-shaped structure. The inclined surface 126 is the side wall of the trough-shaped structure, and the bottom surface 140 is the bottom wall of the trough-shaped structure. Water can be stored inside the trough-shaped structure. The mounting part 127 is higher than the bottom surface 140. After some of the water inside the trough-shaped structure has boiled away, the temperature switch 131 starts to heat up. However, there is still water in the lower part of the trough-shaped structure, which ensures continuous steam generation.
[0079] like Figure 4 As shown, in some embodiments, optionally, the distance between the mounting portion 127 and the top of the inclined surface 126 is smaller than the distance between the mounting portion 127 and the bottom of the inclined surface 126.
[0080] When the mounting part 127 is closer to the top of the inclined surface 126, the temperature switch 131 can respond quickly after some of the water on the inclined surface 126 has dried up, ensuring that the residual water on the heating surface 125 can support the deformation of the temperature switch 131.
[0081] Combination Figure 3 and Figure 4 As shown, in some embodiments, optionally, the heating plate 121 is provided with a groove 128, which is located on the second side of the inclined surface 126.
[0082] A groove 128 is provided on the top of the heating surface 125, and the groove 128 is located on the second side of the inclined surface 126, that is, the groove 128 is located on the inner side of the inclined surface 126. During the heating process of the water in the steam generator 122, as the water on the inclined surface 126 is dried up, a certain amount of water is still stored in the groove 128, so that steam is continuously generated in the steam generator 122 during the heating process of the temperature switch 131.
[0083] By providing a groove 128 on the top of the heating surface 125, the groove 128 has a certain water storage capacity. During the time period from when the temperature of the temperature switch 131 reaches the first preset temperature to when water enters the steam generator 122, the water in the groove 128 can prevent the problem of intermittent steam from occurring.
[0084] Combination Figure 3 and Figure 4 As shown, in some embodiments, optionally, the groove 128 includes a groove sidewall 1281 and a groove bottom wall 1282, and the included angle between the groove sidewall 1281 and the groove bottom wall 1282 is greater than 90°.
[0085] The groove sidewall 1281 in the groove 128 is inclined relative to the groove bottom wall 1282, and the angle between the groove sidewall 1281 and the groove bottom wall 1282 is greater than 90°. That is, from the groove bottom wall 1282 of the groove 128 to the opening of the groove 128, the cross-sectional area of the groove 128 gradually increases, and the groove 128 has an flared structure.
[0086] By setting the groove 128 as a flared structure, it is beneficial to increase the volume of the groove 128, thereby increasing the water storage capacity of the groove 128. During the heating process of the temperature switch 131, the water in the groove 128 is sufficient to support the water to be added to the steam generator 122 again, thereby avoiding the problem of steam interruption.
[0087] Combination Figure 3 and Figure 4 As shown, in some embodiments, optionally, with the horizontal plane 150 as a reference, the slope of the groove sidewall 1281 is greater than the slope of the inclined plane 126.
[0088] The slope of the sidewall 1281 of the groove is larger than that of the base 110, and the slope of the inclined surface 126 is smaller than that of the horizontal surface 150. That is, the angle between the inclined surface 126 and the horizontal surface 150 is smaller, and the area covered by the inclined surface 126 in the horizontal direction is larger, so that the inclined surface 126 can completely cover the mounting part 127. The mounting part 127 only contacts the inclined surface 126, ensuring that the influence of the mounting part 127 is only affected by the inclined surface 126, which helps to improve the temperature response accuracy of the temperature switch 131.
[0089] Combination Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the temperature switch 131 is optionally misaligned with the bottom wall 1282 of the tank in a direction perpendicular to the horizontal plane 150.
[0090] The temperature switch 131 is offset from the bottom wall 1282 of the tank. Therefore, the temperature of the temperature switch 131 is affected by the inclined surface 126, but not so much by the bottom wall 1282. After the water on the inclined surface 126 has boiled away, there is still water in the groove 128. By positioning the temperature switch 131 away from the groove 128, when dry burning occurs on the inclined surface 126, the temperature switch 131 can respond quickly, thereby rapidly reaching the first set temperature and shortening the dry burning time of the heating surface 125.
[0091] like Figure 4 As shown, in some embodiments, optionally, the heating plate 121 is also provided with a mounting surface 129, which is located on the first side of the inclined surface 126. With the horizontal plane 150 as a reference, the slope of the mounting surface 129 is less than the slope of the inclined surface 126, and the steam generator 122 is sealed to the mounting surface 129.
[0092] The heating plate 121 is located at the bottom of the steam generator 122. The steam generator 122 and the heating plate 121 are sealed together to prevent water from seeping out between the steam generator 122 and the heating plate 121 when there is water in the steam generator 122.
[0093] In this design, the mounting surface 129 is sealed to the steam generator 122. The mounting surface 129 is located outside the inclined surface 126 and is positioned at the edge of the heating plate 121. The slope of the mounting surface 129 is less than that of the inclined surface 126. That is, the mounting surface 129 can extend horizontally, or it can have a small angle with the horizontal direction. When the slope of the mounting surface 129 is smaller, it is easier to achieve a seal between the steam generator 122 and the mounting surface 129, thereby improving the sealing effect between the steam generator 122 and the heating plate 121.
[0094] Combination Figure 2 and Figure 8 As shown, in some embodiments, optionally, a steam outlet 111 is provided on the top surface 112 of the base 110, and the steam generator 122 and the cooking cavity 210 are connected through the steam outlet 111. The top surface 112 of the base 110 is inclined toward the steam outlet 111.
[0095] Steam in the steam generator 122 flows to the cooking chamber 210 through the steam outlet 111, tilting the top surface 112 of the base 110 toward the steam outlet 111, so that the condensate on the top surface 112 of the base 110 can flow to the steam outlet 111, preventing the condensate from accumulating on the top surface 112 of the base 110.
[0096] like Figure 8 As shown, in some embodiments, optionally, the mounting portion 127 and the steam outlet 111 are staggered in the direction perpendicular to the horizontal plane 150.
[0097] Condensate will drip onto the heating plate 121 through the steam outlet 111. Since the mounting part 127 and the steam outlet 111 are misaligned, the condensate will not drip onto the position of the mounting part 127 in the heating plate 121. This avoids the condensate from evaporating near the mounting part 127 and affecting the temperature of the temperature switch 131, ensuring that the temperature switch 131 can deform normally and thus ensuring that the water inlet function can be stably realized.
[0098] Figure 8 In the diagram, the dashed line indicates the mounting position of the mounting part 127 at the bottom of the heating plate 121.
[0099] Combination Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, with the horizontal plane 150 as a reference, the temperature switch 131 is lower than the heating plate 121.
[0100] Temperature switch 131 is lower than the bottom of heating plate 121, that is, the side of temperature switch 131 does not face heating plate 121. This ensures that the temperature of temperature switch 131 is only affected by mounting part 127, thereby avoiding other positions in heating plate 121 from affecting the temperature change of temperature switch 131 and improving the temperature response accuracy of temperature switch 131.
[0101] Combination Figure 4 and Figure 5 As shown, in some embodiments, optionally, the water control assembly 130 further includes: a valve body housing 133 and an elastic seal 135. The valve body housing 133 is connected to the heating plate 121, and the valve body housing 133 is provided with a water inlet 134, which is connected to the steam generator 122. The elastic seal 135 is disposed on the valve body housing 133. The temperature switch 131 is used to drive the elastic seal 135 to move relative to the valve body housing 133. When the elastic seal 135 is pushed by the temperature switch 131, the elastic seal 135 opens the water inlet 134 so that the water inlet 134 is connected to the water supply end 300. When the elastic seal 135 is in the initial position, the elastic seal 135 closes the water inlet 134.
[0102] Temperature switch 131 can push elastic seal 135. When elastic seal 135 is pushed, it opens water inlet 134, connecting water supply end 300 to connecting pipe, allowing water from water supply end 300 to flow into steam generator 122 through connecting pipe. When temperature switch 131 does not push elastic seal 135, it closes water inlet 134, preventing water from water supply end 300 from flowing into steam generator 122.
[0103] When the temperature switch 131 stops pushing the elastic seal 135, the elastic seal 135 can automatically reset under the action of elastic force, realizing the function of automatically opening and closing the water inlet 134. In addition, the elastic seal 135 is relatively soft, so the elastic seal 135 can fit tightly with the valve body shell 133, which helps to improve the sealing effect of the water inlet 134.
[0104] The temperature switch 131 directly actuates the elastic seal 135, eliminating the need for any intermediate components between them. This avoids issues caused by installation errors between the intermediate components and the valve body housing 133, preventing the intermediate components from failing to lift the elastic seal 135 or the elastic seal 135 from failing to close the inlet 134 under the action of the intermediate components after the temperature switch 131 returns to its original position. By eliminating intermediate components, the stability of the fit between the temperature switch 131 and the elastic seal 135 is ensured, as well as the ability of the elastic seal 135 to reliably open and close the inlet 134.
[0105] The valve body housing 133 is mounted on the heating plate 121, which facilitates the control of assembly and dimensional errors and avoids deviations in height after assembly when each component is assembled on different components. This prevents the temperature switch 131 from deforming and failing to push the elastic seal 135, thus ensuring installation accuracy.
[0106] For example, the resilient seal 135 is a rubber resilient or a silicone resilient.
[0107] Combination Figure 4 and Figure 5 As shown, in some embodiments, optionally, the temperature switch 131 includes a deformable portion 1311 and a pushing portion 1312. The deformable portion 1311 is connected to the mounting portion 127. When the temperature of the deformable portion 1311 is greater than or equal to a first set temperature T1, the deformable portion 1311 deforms; when the temperature of the deformable portion 1311 is less than a second set temperature T2, the deformable portion 1311 remains in its original state. The pushing portion 1312 is connected to the deformable portion 1311. When the deformable portion 1311 deforms, the pushing portion 1312 pushes the elastic seal 135.
[0108] The pushing part 1312 contacts the deformable part 1311. The pushing part 1312 overlaps the deformable part 1311 at a position where deformation can occur. The deformable part 1311 is used to push the pushing part 1312. When the deformable part 1311 deforms, the pushing part 1312 can move in accordance with the deformation of the deformable part 1311.
[0109] Thus, with the deformable part 1311 and the elastic seal 135 staggered, the linkage between the two can be achieved by the pushing part 1312, which facilitates the rational layout of the internal structure of the cooking equipment 200.
[0110] Temperature switch 131 can deform according to its own temperature change. For example, the material of temperature switch 131 can be a temperature-sensitive material, such as liquid crystal elastomer and memory metal, or temperature switch 131 can be a bimetallic material made of two metals with different coefficients of thermal expansion and contraction.
[0111] The water control assembly 130 also includes a connecting pipe 132, which is an integral structure with the elastic seal 135. The water inlet 134 is connected to the steam generator 122 through the connecting pipe 132.
[0112] The connecting pipe 132 is connected to the elastic seal 135, and the connecting pipe 132 is integrally formed into the elastic seal 135. Therefore, it is not necessary to process the connecting pipe 132 and the elastic seal 135 separately, which reduces the processing difficulty of the water control component 130 and can also improve the installation accuracy of the connecting pipe 132 and the elastic seal 135.
[0113] like Figure 4 As shown, in some embodiments, optionally, the resilient seal 135 includes: a movable part 136 and an elastic part 137, the temperature switch 131 is used to push the movable part 136, the end of the movable part 136 is used to open or close the water inlet 134, the elastic part 137 is connected to the movable part 136 and the valve body housing 133, and the elastic part 137 deforms when the movable part 136 is pushed.
[0114] Temperature switch 131 can push movable part 136, which moves relative to valve body housing 133 and opens water inlet 134. An elastic part 137 is provided between movable part 136 and valve body housing 133. During the movement of movable part 136, the elastic part deforms, accumulating elastic potential energy. When temperature switch 131 stops pushing movable part 136, the elastic part, through its elastic force, drives movable part 136 to move back to its original position, thereby closing water inlet 134.
[0115] A portion of the elastic seal 135 is configured to fit the inlet 134, thereby tightly closing the inlet 134. Another portion of the elastic seal 135 is configured to be deformable, thereby stably driving the movable part 136 to reset.
[0116] Combination Figure 4 and Figure 5 As shown, in some embodiments, the resilient seal 135 may optionally include a spring 138, which is sleeved on the movable part 136 and located between the movable part 136 and the valve body housing 133. When the movable part 136 is pushed, the spring 138 deforms.
[0117] A spring 138 is fitted onto the movable part 136, with one end of the spring 138 abutting against the movable part 136 and the other end abutting against the valve body housing 133. When the movable part 136 is pushed, the spring 138 is compressed; when the movable part 136 stops being pushed, the spring 138, together with the elastic part 137, drives the movable part 136 to reset. By adding the spring 138 as the component driving the movable part 136 to reset, the reset stability of the movable part 136 can be improved, ensuring that the movable part 136 can stably close the water inlet 134 and preventing water overflow caused by continuous water entering the steam generator 122.
[0118] Combination Figure 4 and Figure 5 As shown, in some embodiments, optionally, at least a portion of the elastic seal 135 is located inside the valve body housing 133, the valve body housing 133 is provided with an installation port 139, one end of the elastic seal 135 extends out of the installation port 139, the temperature switch 131 is used to push one end of the movable part 136, and the other end of the elastic seal 135 is used to open or close the water inlet 134.
[0119] The valve body housing 133 is provided with a mounting port 139 for the elastic seal 135 to extend out. The temperature switch 131 can push a portion of the elastic seal 135 extending out of the mounting port 139. A portion of the elastic seal 135 is installed inside the valve body housing 133, and the valve body housing 133 limits the elastic seal 135 to prevent it from dislodging from its mounting position.
[0120] The valve body housing 133 includes an upper valve body cover 1331 and a lower valve body cover 1332. A portion of the resilient seal 135 is installed between the upper valve body cover 1331 and the lower valve body cover 1332. The lower valve body cover 1332 is mounted on the heating plate 121. A water inlet 134 is located on the upper valve body cover 1331, and a mounting port 139 is located on the upper valve body cover 1331. When the temperature switch 131 pushes the resilient seal 135, a portion of the resilient seal 135 descends, thereby opening the water inlet 134.
[0121] In the embodiments of this utility model, a cooking device 200 is proposed, which includes the base assembly 100 in any of the above embodiments and can achieve the same technical effect, which will not be described again here.
[0122] For example, the cooking appliance 200 can be a steam stew pot, a steam cooking machine, etc.
[0123] Combination Figure 1 and Figure 2As shown, the water supply end 300 includes a water tank for storing water, which is mounted on the base assembly 100. The water control assembly 130 is used to open or close the passage between the water tank and the steam generator 122. When the water supply end 300 and the connecting pipe 132 are connected, the water tank and the steam generator 122 are connected by a communicating vessel principle to allow water to enter the steam generator 122. The cooking device 200 also includes a cover 400, which is mounted on the base assembly 100, forming a cooking cavity 210 between the cover 400 and the base assembly 100.
[0124] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0125] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0126] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A base assembly for a cooking device having a cooking cavity, characterized in that, The base assembly includes: Base; A steam generating assembly is disposed within the base. The steam generating assembly includes a heating plate and a steam generating element. The heating plate has a heating surface for heating water within the steam generating element to provide steam to the cooking cavity. The heating surface includes an inclined surface. A first side of the inclined surface is adjacent to the edge of the heating plate. With a horizontal plane as a reference, the height of the inclined surface decreases from the first side to the second side. The heating plate also includes a mounting portion. A water control component is disposed within the base. The water control component includes a temperature switch disposed on the mounting portion. The temperature of the temperature switch changes with the temperature of the heating plate. When the temperature of the temperature switch is greater than or equal to a first set temperature T1, the water control component connects the water supply end to the steam generator. When the temperature of the temperature switch is less than a second set temperature T2, the water control component closes the passage between the water supply end and the steam generator. T1≥T2. In a direction perpendicular to the horizontal plane, the mounting portion is disposed opposite to the inclined surface.
2. The base assembly according to claim 1, characterized in that, The inclined surface extends from the highest point of the heating surface to the lowest point of the heating surface, and the mounting part is higher than the lowest point of the heating surface.
3. The base assembly according to claim 1, characterized in that, The heating surface also includes a bottom surface, which is connected to the inner side of the inclined surface, and the mounting part is higher than the bottom surface.
4. The base assembly according to claim 1, characterized in that, The distance between the mounting part and the top of the inclined surface is less than the distance between the mounting part and the bottom of the inclined surface.
5. The base assembly according to claim 1, characterized in that, The heating plate has a groove, which is located on the second side of the inclined surface.
6. The base assembly according to claim 5, characterized in that, The groove includes a sidewall and a bottomwall, and the included angle between the sidewall and the bottomwall is greater than 90°.
7. The base assembly according to claim 6, characterized in that, With the horizontal plane as a reference, the slope of the groove sidewall is greater than the slope of the inclined plane.
8. The base assembly according to claim 6, characterized in that, The temperature switch is offset from the bottom wall of the tank in a direction perpendicular to the horizontal plane.
9. The base assembly according to claim 6, characterized in that, The heating plate is also provided with a mounting surface, which is located on the first side of the inclined surface. With the horizontal plane as a reference, the slope of the mounting surface is less than the slope of the inclined surface, and the steam generator is sealed to the mounting surface.
10. The base assembly according to any one of claims 1 to 9, characterized in that, The base has a steam outlet on its top surface. The steam generator and the cooking cavity are connected through the steam outlet. The top surface of the base is inclined toward the steam outlet.
11. The base assembly according to any one of claims 1 to 9, characterized in that, The mounting portion is offset from the steam outlet in a direction perpendicular to the horizontal plane.
12. The base assembly according to any one of claims 1 to 9, characterized in that, With the horizontal plane as a reference, the temperature switch is lower than the heating plate.
13. The base assembly according to any one of claims 1 to 9, characterized in that, The water control component also includes: The valve body housing is connected to the heating plate, and the valve body housing is provided with a water inlet, which is connected to the steam generator; An elastic seal is provided on the valve body housing. The temperature switch is used to drive the elastic seal to move relative to the valve body housing. When the elastic seal is pushed by the temperature switch, the elastic seal opens the water inlet to connect the water inlet to the water supply end. When the elastic seal is in the initial position, the elastic seal closes the water inlet.
14. The base assembly according to claim 13, characterized in that, The temperature switch includes: The deformable part is connected to the mounting part. When the temperature of the deformable part is greater than or equal to the first set temperature T1, the deformable part deforms. When the temperature of the deformable part is less than the second set temperature T2, the deformable part is in its original state. The pushing part is connected to the deformable part, and when the deformable part deforms, the pushing part pushes the elastic seal.
15. A cooking device, characterized in that, include: The base assembly as described in any one of claims 1 to 14.